Heating system



oct. 13,1925. 1,556,803

P. B. PARKS ET AL HEATING SYSTEM Y Filed May 19. `1.923 3 'Sheets-Shoot 2 oct. 13, 1925. 1.556.803

P, B. PARKS Er-AL.

HEATING SYSTEM Filed May 19. 1923 3 Sheets-Shut 3 WW j mmnmnmnil Illl Mmmm l i I minimun Patented ct. 13, 1925.

N.UNIT En STATES Pari-:Nr :ol-talee.

`PAUL `R. PARKS, or OAR PARK, Ann ronnvan VULPRN, organiseer), 'Amp-rivers, As-

sreNoRs `To VAPOR GARHRATING :eoRnTroN oF NRW iroRKQ sommaire, `or Gewisse, iI'LeNQls, A ebe- HRATING SYSTEM.

Application filed `May 19, 1923. Serial iNo.. 640,133.

To all 'whom t .may concern Be it Aknown that we, PAUL B. Ramis and JOHN VAN VULBEN, citizens ofthe United States, residing at Oak Park, Illinois, `and Chicago, Illinois, respectively, have invented certain lnew and Auseful Improvements in Heating'Systems, iof which `the f[following is a specification. L

@ur invention relates to a steam flieating system intended particularly for the heating of railway cars, vand has for its .object the provision of improvements ,in a lheating system of `this character, whereby two or more iradiatingcoils and their val-ves may be connected in -one circuit ,and to provide `further improvements in 'the Avalves whereby any water .delivered from @the first coil to the valve of the second coil is discharged lfrom the latter valve instead of ybeing circulated with the steam through the second Coil.

The invention consists of the :new and eimproved constructions and arrangements and devices shown in `the accompanying `drawings, and to be `hereinafter `described and claimed `for carrying ont the above stated objects and such other incidental objects as will be mentioned in the Ifollowing.description of the preferred embodiments of the finvention shown in the drawings.

7e kdo not claim herein the lfeatures of the valve apart from the other yinstrumentalities of lthe heating system; the valve ybeing/.claimedin a copending application vfiled April `18, 1924, Serial 707,435.

In the drawings,

Fig. l is a plan view with parts in .section, inthe nature-of a diagram illustrating a heating system Ain which there `are .two radiators, anditwo radiator valves connected un in series.

Fig. 2 is a vertical sectional view `on line 22 of Fig. 3.

:F ig. 3 is a sectional plan taken through the valve, this A:figure 4beingon a plan indicated ;by `line SW3 of Fig. 4.

Fig. 4 is a sectional view through the valve,showing a drainage passage ,ifor water of condensation.

Fig.5 is al `fragmentary `plan vien7 similar to that of 'Fig'. 3, but showing ,the valve body in its `closed position, linstead of the openposition shown in Fig. 3.

Rig. .6 Vis a detail vertical sectional vien of the valve.`

Fig. "7 is a fragmentary vie-vv, in persped tive, of the lower portion of the stem :tor operating ,the rotary wial've body of the radiator valve, and

Fig. 8 is a similar view of the top ofthe valve ibod'y- The `,heating system ,herein `shown icon Ssts preferably of a primary radiator and a ,secondary `,radiator A,'@Qntrol1ed by primary land secondary radiator valyesfB an d B', respectively, `so .connected with teach other, that'the steam Avdischanged from the primary icoil A may ibe directed into the secondary coil A. l f

:Beforeidesoribing the heating :system ,as a lwhole, we `Willydescribe lin detail the radia* tor valve construction. Both valves .are preferably thesame in construction. It ,will therefore .be suiiicient to describe the primary `valve.

Radiator @alaaf-The radiator valve ,comprises a casing `50dividediby webs51,52, 53, 54, and56 (Figs. Bando) into sixchambers comprisingasuppl-y chamber L fa drip chamber le, a first iretunn chamber if, an let chamber J9, a second return chamber :0, and adischarge chamber,d,all of .which ,are arranged around ,a `central valve chamber containing arotary valve body 57,the latter being composedtofan upper disc 58a5lower disc 59 and verticafl websO, 6l and 562web 60 being reinforced ,by an enlargement 68, all of `these separatelyenumerated parts of the valve ibody :being preferably cast in 'a single integral structure. {[he :lower disc 59 `is `formed with a stud 5.6.4 which enters a recess in `.the bottom fplate66 of the valve casing. The `upper disc 58 ffof the valve body is formed with a `circular rib.orboss 67 in 4which are cutldiametrically arranged grooves `68, 69, rthe under surface of the latter beingslopechas indicated ,in Figs. 6 and V8,. The valve casing-is closed on .the topby a bonnet 70,in which isfixed a gland 71. The operating stem 72 ofthe valve ,is made separate from the valve Lbody, ,extends through the bonnet .and ,igland 'Yland vis formed Vat fits lower end `with Ya transverse head F3 entering :the grooves 68, 69 in I the 69 being tapered as indicated at 74. By this arrangement the head is irreversible with respect to the valve body for the purpose of avoiding mistakes in assembling. The under surface of the head 7 3 is formed with a projecting portion vto bear on a projecting portion 76 on the top of the valve body. By constructing the interengaging parts of the valve stem and body in this manner a certain accomodation is provided which minimizes care in the assembly of ,the parts and facilitates the machining of such parts as require close fitting. With the valve stem integral or rigidlyA connected with the valve body, it was a matter of difficulty to produce a valve of this type Which Would turn freely. The valve may be turned from one position to another by means of a lever F.

Arranged in the bonnet 7 O against a conical surface 77 thereof is a packing ring 78, of smaller diameter than the space in which it is arranged, formed With its lower end conical to fit surface 77. In the upper end of the gland 71 and arranged against a conical surface 79 thereof is a similar packing ring 80. A spiral spring 81 is interposed between Washers 81a bearing against the packing rings 7 8, 80. The packing rings 78, 8O are madepof smaller diameter than the spaces in which they are located so that they may expand when the valve is heated up Without interfering With the free rotary movement of the valve stem. The packing rings, in practice, turn With the valve stem. They are kept in sealing position against the bonnet 70 and gland 71 by the coiled spring 81.v When wear takes place on the conical under surfaces of the packing rings looseness Yis prevented by the take-up spring 81.

Referring now to the primary radiator of Fig. 1 and the valves of Figs. 3, 4 and 5.l the course of the heating medium through the radiator A and valve B Will be traced. 82 is a steam supply pipe leading to chamber a of valve B. This pipe may lead from the lovv pressure chamber of a vapor regulator of the type shown in the patent to Russell, 1,440,701, January 2, 1923. With the valve in the open position (Fig. 3) the steam entering chamber @passes across the central valve chamber to chamber Z), all of the other chambers of the valve casing being shut off from supply chamber a.' From chamber b the steam passes through coil 83 into a coil 84. The Water of condensation in coil 83 passes down through a pipe 85 into chamber ,-f of the valve. The bottom 66 of the valve casing is formed With a web 86 in Which is aductv 87 (Fig. 4) extending from a Well 88 in the bottom of chamber f to a Well 89 in chamber c. The water of condensation entering chamber f Will flow through this duct and from chamber c across the central valve chamber to chamber CZ. From this chamber leads a discharge pipe 96 Which connects valve B with valve B. When the valve B is turned from its open position to its closed position, in Fig. 5, the steam and Water of condensation will pass through the chambers a and d to the discharge pipe 90 and thence to the thermostat casing 0f the vapor regulator. The steamand Water of condensation from coil 84 enters the chamber c from the return end 91 of coil 84 and from here passes out through chamber ci and pipe 96 to valve B. When the primary valve is turned from its open position, as shown in Fig. 3, to its closed position shown in Fig. 5, the steam entering the chamber a passes directly to chamber d and to a pipe 96. If the secondary valve be closed as above mentioned,'the steam Will pass through chamber a to chamber d and thence through the pipe 90 to the thermo- 'stat casing of the vapor regulator. Just enough steam will follow this course to keep the vapor regulator warm. The other four chambers of the valve are shut ofi' from chambers a and Z but are in communication With each other for the purpose of draining the coils 83, 84. The drip chamber e is connected by a duct 92 in the bottom of the casing with a nipple 93 arranged centrally of the valve casing and threaded for a discharge pipe (Fig. 2). Webs 61 and 62 of the valve body are in such position that chambers c, b and f are all open to the central valve chamber and the latter in communication With the discharge chamber c. 94 is a 'small drain opening from the valve chamber into duct 92 to prevent the collection of Water in the valve chamber underneath the valve. The chambers b and are formed with depressions 95, 95 whic are preferably connected by drilling a duct 95.

Vhen the secondary valve is in its open position, the steam passing from valve B to valve B will be directed into the second radiator coil A', which coil is preferably the same in construction as radiator coil A. Unless some provision were made for separating the Water from the steam and discharging the Water at this point, the efficiency of the secondary radiator would obviously be considerably reduced. In fact, the efficiency of the entire system rwould be reduced because of the necessity of forcing Water of condensationtaken from the pri-` mary radiator through the secondary radiator. To remedy this dificulty the duct 95, 95', 95, above referred to, has been provided between chambers 7) and f. Then Water and steam enter the chamber bf of the secondary valve the Water passes from chamber b to chamber f through the duct just referred to, While the steam passes into the coil 83 and thence into coil 84. The Water of condensation from coil 83 enters cham ber f', of the lsecondary valve, through pipe vandthis water of condensation, together with the water of condensation entering chamber' f from duct 95, 95'-, 95 passes through duct 87 to chamber c and is then discharged to the vapor regulator through chamber al and pipe 90, together with the water of condensation from the coil 84 of radiator A.

In Fig. l, the return pipes 85 and 9i are shown as connected with and discharging into one side of chambers f and c, whereas in Figs. 3 and 5, these pipes 85 and 91, are shown as discharging into a diiferent side of each of chambers f and c. Obviously the oper-ation is the same in-either case, and the construction otthevalve casing may be varied in this manner to accommodate difterent types of car installations.

By this `arrangement the radiating system `is divided, effectively, into four independent circuits, independent in the sense that they discharge 'their water of condensation at four different points, but continuous in the sense that each coil receives the lsteam diss charged from the coil ahead of it. The employment of the duct will be possible with the four-chambered valve used when the secondary radiator consists of a single `coil instead of two coils, as shown.

117e claim:

1. :In a heatingsystem, the combination of two radiators and valves associated with said radiators, respectively, constructed and connected so that steam may be introduced into one of said valves, circulated successively through said radiators and the water of condensation discharged 'from the other valve, said last named valve comprising a casing having an outlet and a valve body which in one position directs the incoming steam to the radiator associated with said valve and the water of condensation from said radiator to said outlet, said casing being formed with a water sealed duct arranged, when the valve body is in the position mentioned, to allow water of condensation entering the valve with steam from the other radiator to pass directly to the outlet of said valve instead of circulating with the steam through the radiator associated with said valve.

2. In a heating system, the ,combination of two radiators and valves associated with said radiators, respectively, constructed and connected so that steam may be introduced into one of said valves, circulated successively through said radiators and the water of condensation discharged from the other valve, said last named valve comprising a casing having an outlet and a valve body which in one position directs the incoming steam to the radiator associated with said valve, and the water of condensation from said radiator to said outlet, said valve bei nssaoa ing provi-ded with means which, when the valve body is in the position mentioned, perrv mits water entering said valve lirom the other radiator to pass directly to said outlet `instead ot' Ibeing circulated with thesteam through the radiator associated with said valve while preventing the steam entering said valve from following the same course.

il. in a steam heating system, the combination ot' lprimary and secondary yradiator valves, comprising, in reach instance, va casing formed with supply, inlet, second return, and discharge chambers, and a valve body, which in one position puts the supply and inl-et chambers into communication with each other, and in another position estab lishes communication between the supply and discharge chambers, a radiator associ ated with each of said valves, having its inlet end connected with the inlet chamber, and its return end with the second return chamber, a steam supply pipe leading to the. supply chamber of the primaryvalve, a pipe leading from the discharge chamber of the primary valve to a vsupply chamber of the secondary valve, an outlet from the discharge chamber of the secondary valve, the secondary valve being formed with a water sealed duct between the inlet and second return chambers.

4l. In a steam heating system, the combination of primary and secondary radiator valves, comprising in each instance, a casing 'formed with a central valve chamber, and a pluralityot` chambers arranged around the same including a supply chamber, an inlet chamber, a second return chamber, and a discharge chamber, and a rotary valve body in said valve chamber, which in one position puts the supply and inlet chambers into communication with each other, and in .another posit-ion establishes communication between the supply and discharge chambers, a radiator associated with each of said valves, having its inlet end connected with the inlet chamber, and its return end with the second return chamber, a steam supply pipe leading to the supply chamber ot the primary valve, a pipe leading Jfrom the discharge chamber of the primary valve to the supply chamber of the secondary valve, an outlet from the discharge chamber of the secondary valve, the secondary valve being formed with a water sealed duct between the inlet chamber and the second return chamber.

5. In a steam heating system, the combination of primary and secondary radiator valves, comprising, in each instance, a casing formed with" a supply chamber, drip chamber, first return chamber, inlet chamber, second return chamber and discharge chamber, and a valve body, which in one position puts the supply chamber in communication with the inlet chamber, shutting oli' the other chambers from the supply chamber, and in lli another position shuts the inlet chamber from the supply chamber, and puts the discharge chamber in communication with the supply chamber, a radiator' associated with each of said Valves, having an inlet end connected with the inlet chamber and return ends connected with the first return and second return chambers, a steam supply pipe leading to the supply chamber of the primary valve, a pipe leading from the discharge chamber of the primary valve to the supply chamber of the secondary valve, lan outlet from the discharge chamber of the secondary Valve, the secondary valve being formed With a Water sealed duct connecting the inlet chamber and second return chamber. 3

6. In a steam heating system,'the combination of primary and secondary radiator valves comprising, in each instance, a casing formed with a supply chamber, a drip chamber, a first return chamber, an inlet chamber, second return chamber, and a discharge chamber, and a Valve bodywhich in one position puts the supply chamber into communication with the inlet chamber, shutting` off the other chambers from the supply chamber, and in another position puts the supply chamber into communication with the discharge chamber, and-the second return, the inlet, and first return chambers into communication with the drip chamber, a radiator associated with each of said valves, having an inlet end connected With the inlet chamber, and return ends connected with the first return and second return chambers, a steam supply pipe leading to the supply chamber of the primary `Valve, a pipe leading from the discharge chamber of the primary valve to the supply chamber of the secondary valve, an outlet from the discharge chamber of the secondary Valve, and drainage outlets from the drip chambers of both valves, each of said Valves being formed With a Water sealed duct from the first return chamber to the second return chamber, and the secondary Valve being formed with. a water sealed duct from the inlet chamber to Jthe first return chamber.

7. In a heating system, the combination with a radiator having a drain outlet intermediate its inlet'and discharge ends, of' a valve for controlling the admission of steam to the radiator, comprising a casing formed With supply chamber, an inlet chamber connnunicating With the inlet end of the radiator, a first return chamber communirating with the intermediate drain outlet of' the radiator, a second return ychamber com'- municating with the discharge end of' the radiator, and a discharge chamber, and a ralre body arranged in the casing and adapted in one position to direct steam into the radiator, and in another position to connect the supply and discharge chambers, the valve casing being formed With a fluid sealed duct between the first return and the second return chambers.

8. ln' a heating system, the combination with a radiator having a drainage outlet vintermediate its inlet and discharge ends, of'

a Valve for controlling the admission of steam to the radiator, comprising a casing formed with a supply chamber, an inlet chamber communicating With the inlet end ot' the radiator, a first return chamber communicating with the intermediate drainage outlet of the radiator, a second return chamber communicating with the discharge end of' the radiator, and a discharge Chamber, and a valve body arranged in the casing and adapted in one position to direct steam into the radiator, and in another position to connect the supply and discharge chambers, the valve casing being formed with a fluid sealed duct between the inlet chamber and the first return chamber.

PAUL B. PARKS. JOHN VAN VULPEN. 

